Valve



J. C. HOWARD VALVE Filed May 5, 1927 UEKSSE C.HOWARD Patented Een ll, 1928.

entran srArss JESSE C. HOWARD, OF COLUMBUS, OHIO.

" VALVE.

Application filed May 5, 1927. Serial No. 189,139.

This invention relates to reciprocating valves especially tor liquid conductors.

'lhe object oit the invention is to provide an improved afndsiinplitied swivel connection between a valve head and its threaded stem whereby the stem can be more or less rotated in the head the valve has been seated and thereby avoid Wear on the valve lining by rotation on its seat.

The invention is embodied in the example herein shown and described, the 'feature ot novelty being finally claimed.

ln the accompanying drawing# Figure 1 is a vertical section of a valve case showing the valve and its stem in i`nll therein.

Fig. 2 is a sectional view ot the valve head with the swivel-.head end ot the stein placed therein bet'ore the connection is ellfected.

Fig. 3 is a vieiv similar to Fig. 2 showing the connect-ion ellected.

ln the views 5 designates the usual valve casing, it having avalve seat at G between the inlet and outlet passages ot' the casing.

7 designates the valve hea-d, and 8 the operating stem therefor, said stein being provided with a short threaded portion at 9 engaging a threaded portion in the cap l() so that by turning the hand Wheel 11 of the stem in the proper direction the valve can be raised or lowered as usual in such structures.

ln the present instance the valve h ad is iorined out ot a cylindric bloeit having its upper end recessed internally to 1form a circular shallow soci-:et 12 to receive a laterally projecti circular swivel head 13 and above this an annular groove lil and above this an openg 15 of snlllcient size to just about permit the swivel head to be passed therethrough to the socket l2.

rllhe swivel head is First placed in the socket and then the material ot the head abovethe `nni lar groove 1li pressed i Yith a suitable tool o that it is extended inward over the flange ofthe swivel' head substantially as shown in rig. 3, thereby preventing the separation of the head 'trom the stem but permitting the tnrning et the swivel head in the valve head or conversely. lhe annular groove la admits ot the ready and quick shaping or pressing oi? said portion into thepo'sition described.

rlhe lower end ot the valve head is lined with an ordinary Washer 16 ot fibre, rubber compound or other suitable material held onk saidhead by a set screw 17.

A Washer 18 is shown as interposed between the cap 1() and the valve casing, against which washer the valve head iinpinges when elevated to its extreme upper position. Then the valve head is thus elevated leakage ot Water through the cap is prevented.

ln practice the valve head can be raised or lowered by turning the hand Wheel as usual y and the valve and stem may turn together, but

vfhen the Washer 16 is lowered into Contact with the valve seat or the valve head raised into contact With WasherlS the head ceases to tarn, and a slight further ti'lrn of 'the stein sulflices lirmly to close the passage between the iiuid inlet and outlet or the leakage ot Water upward around the stem as the case may be. Because oit. the V-L'fform shown imparted to the valve head at its upper end it exerts a slightly penetrating effect into the washer 18, and therefore serves to quite effectually prevent Vleakage through the cap around the upper aart ot' the stem.

The 'forms ot the parts can be changed Without departing from .the gist ol' the invention as claimed.

ll/Vhat l claim is:

l. ln a device ot the kind described, a

`nularly grooved above the bottom thereof and the upper end of said recessed portion pressed into retaining engagement With said stein head, the head otl said stein itting in the 1gettoni oi said recess.

3. ln a device et the lrinddescribed, a valve stem having a head, a valve head having a recessed portion to receive said stein head, said recessed portion being annularly grooved above the bottomvthereot and pressed thereabove to form a valve and into retaining and soelreted engagement With said stem head.

Jesse o. HoWAnD. 

